Health Conditions
Published 2026-05-03 • 10 min read
Turtles have been on Earth for over 200 million years — and their diets are just as diverse as their habitats. Whether you own a pet turtle or are simply curious, understanding what turtles eat is essential for their health and longevity. This guide covers the diet of aquatic turtles, land turtles, and box turtles, along with foods to avoid and feeding tips backed by veterinary guidance.
Wild turtles are opportunistic feeders. Their diet depends heavily on species, habitat, and age. Most turtles fall into one of three dietary categories:
Younger turtles tend to lean more carnivorous for protein to support growth, while adults of many species shift toward plant-based diets.
Aquatic turtles like red-eared sliders, painted turtles, and map turtles are primarily omnivores. In the wild, they consume:
In captivity, a balanced diet for aquatic turtles includes commercial turtle pellets (40–50%), leafy greens like kale and romaine, and occasional protein sources like cooked chicken, feeder fish, or bloodworms.
Box turtles are true omnivores and one of the most varied eaters in the turtle world. Their diet includes:
In captivity, aim for a 50/50 split between protein and plant matter. Variety is key — rotating foods prevents nutritional deficiencies.
Land turtles, commonly called tortoises, are largely herbivores. Species like the sulcata tortoise, Russian tortoise, and Hermann's tortoise thrive on:
Tortoises should rarely eat fruit due to its high sugar content. Protein from animal sources is generally not recommended for most tortoise species.
Not all foods are safe for turtles. Avoid the following regardless of species:
Feeding frequency varies by age and species. As a general guideline:
Always remove uneaten food from the tank within 30 minutes to prevent water contamination and bacterial growth.
Yes. Captive turtles often lack calcium and vitamin D3 — both critical for shell and bone health. Dust food with calcium powder 2–3 times per week. UVB lighting is also essential for vitamin D3 synthesis in turtles that cannot get natural sunlight.
Yes, but avoid iceberg lettuce. Opt for nutrient-dense options like romaine, red leaf lettuce, endive, or dandelion greens.
Aquatic turtles and box turtles can eat fruit in moderation — berries, melons, and mangoes are good options. Tortoises should rarely eat fruit due to sugar content.
Baby turtles need more protein than adults. Feed hatchlings small insects, worms, and protein-rich pellets daily. Add finely chopped greens as they grow.
Omnivorous and carnivorous turtles can eat cooked, unseasoned meat, feeder fish, or insects. Avoid processed meats with salt or additives.
Healthy adult turtles can survive several weeks without food, especially during brumation (winter dormancy). However, regular feeding is necessary for captive turtles' long-term health.